Java Code Examples for javax.xml.bind.DatatypeConverter#printBase64Binary()

public Map<String, Object> convert(Object obj) {
	// note: the state array returned here must conform to the list consumed by Pyro4's Proxy.__setstate_from_dict__ 
	// that means, we make a list with 8 entries:
	// uri, oneway set, methods set, attrs set, timeout, hmac_key, handshake, maxretries  (in this order)
	PyroProxy proxy = (PyroProxy) obj;
	Map<String, Object> dict = new HashMap<String, Object>();
	String uri = String.format("PYRO:%s@%s:%d", proxy.objectid, proxy.hostname, proxy.port);

	String encodedHmac = proxy.pyroHmacKey!=null? "b64:"+DatatypeConverter.printBase64Binary(proxy.pyroHmacKey) : null;
	dict.put("state", new Object[]{
		uri,
		proxy.pyroOneway,
		proxy.pyroMethods,
		proxy.pyroAttrs,
		0.0,
		encodedHmac,
		proxy.pyroHandshake,
		0   // maxretries is not used/supported in pyrolite
	});
	dict.put("__class__", "Pyro4.core.Proxy");
	return dict;
}
 

/**
 * Encrypt the given {@link String} with the specified {@link Key} and encode the result in
 * Base64.
 * 
 * @param text
 * @param key
 * @return
 * @throws CipherException
 */
public static String encrypt(String text, Key key) throws CipherException {
	try {
		Cipher cipher = Cipher.getInstance(CIPHER_TYPE);
		cipher.init(Cipher.ENCRYPT_MODE, key);

		byte[] outputBytes = cipher.doFinal(text.getBytes());

		String base64;
		if (text.length() < FORMER_MINLENGTH_TO_ENCODE) {
			// use new way to encode strings with less than 4 characters which was impossible
			// before 6.0.003
			base64 = DatatypeConverter.printBase64Binary(outputBytes) + FLAG_NEW_ENCODE;
		} else {
			// use old way for full backwards compatibility
			base64 = Base64.encodeBytes(outputBytes);
		}
		return base64;
	} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | IllegalBlockSizeException | BadPaddingException e) {
		throw new CipherException("Failed to encrypt text: " + e.getMessage());
	}
}
 

private void addBasicAuth(Packet context, Map<String, List<String>> reqHeaders) {
    String user = (String) context.invocationProperties.get(BindingProvider.USERNAME_PROPERTY);
    if (user != null) {
        String pw = (String) context.invocationProperties.get(BindingProvider.PASSWORD_PROPERTY);
        if (pw != null) {
            StringBuilder buf = new StringBuilder(user);
            buf.append(":");
            buf.append(pw);
            String creds = DatatypeConverter.printBase64Binary(buf.toString().getBytes());
            reqHeaders.put("Authorization", Collections.singletonList("Basic "+creds));
        }
    }
}
 

public String getDataFromValue() {
    String result;
    if (isBase64Octets) {
        result = new String(DatatypeConverter.printBase64Binary(value));
    } else {
        result = new String(DatatypeConverter.printHexBinary(value));
    }
    return result;
}
 

public static String encodeDoubleArray(double[] noData) throws IOException
{
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  ObjectOutputStream oos = null;
  byte[] rawBytes;
  try
  {
    oos = new ObjectOutputStream(baos);
    oos.writeInt(noData.length);
    for (double nd : noData)
    {
      oos.writeDouble(nd);
    }
    oos.flush();
    rawBytes = baos.toByteArray();
  }
  finally
  {
    if (oos != null)
    {
      oos.close();
    }
    baos.close();
  }

  return DatatypeConverter.printBase64Binary(rawBytes);
}
 

/**
 * Method to generate a new random token key value
 *
 * @return
 * @throws Exception
 */
private static String generateRandomSecretKey() throws Exception {
  final KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
  keyGenerator.init(256);
  final SecretKey secretKey = keyGenerator.generateKey();
  final byte[] encoded = secretKey.getEncoded();
  return DatatypeConverter.printBase64Binary(encoded);
}
 

private String getBasicAuthentication() {
    try {
        return "BASIC " + DatatypeConverter.printBase64Binary(basicCreds.getBytes("UTF-8"));
    } catch (UnsupportedEncodingException ex) {
        throw new IllegalStateException("Cannot encode with UTF-8", ex);
    }
}
 

/**
 * 进行MD5加密
 *
 * @param text 原始的SPKEY
 * @return String 指定加密方式为md5后的String
 */
public static String encrypt(String text) {
    byte[] returnByte;
    try {
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        returnByte = md5.digest(text.getBytes(Boot.getCharset()));
    } catch (Exception e) {
        return null;
    }
    return DatatypeConverter.printBase64Binary(returnByte);
}
 

public static String serializeLogic(Serializable logic) {

        try {
            ByteArrayOutputStream bao = new ByteArrayOutputStream();
            ObjectOutputStream oos = new ObjectOutputStream(bao);
            oos.writeObject(logic);
            oos.flush();
            return DatatypeConverter.printBase64Binary(bao.toByteArray());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
 

public String urlSafeBase64Encode(byte[] data) {
    String encodedString = DatatypeConverter.printBase64Binary(data);
    encodedString = encodedString.replace('+', '-').replace('/', '_');
    return encodedString;
}
 

public static String encodeToString(byte[] src) {
    return DatatypeConverter.printBase64Binary(src);
}
 

private String encodeBase64(String s) throws Exception {
    return DatatypeConverter.printBase64Binary(s.getBytes("UTF-8"));
}
 

public static String encodeObject(Object obj) throws IOException
{
  byte[] bytes = ObjectUtils.encodeObject(obj);
  return DatatypeConverter.printBase64Binary(bytes);
}
 

public BasicAuthenticator(String user, String passwd){
    this.user = user;
    this.passwd = passwd;
    String base64UserCredentials = DatatypeConverter.printBase64Binary((user + ":" + passwd).getBytes(Charset.forName("US-ASCII")));
    headerValue = TYPE +" "+ base64UserCredentials;
}
 

public static String encode(byte[] data) {
    return DatatypeConverter.printBase64Binary(data);
}
 

@Override
public void setPassword(String username, String password) throws UserNotFoundException {
    // Determine if the password should be stored as plain text or encrypted.
    boolean usePlainPassword = JiveGlobals.getBooleanProperty("user.usePlainPassword");
    boolean scramOnly = JiveGlobals.getBooleanProperty("user.scramHashedPasswordOnly");
    String encryptedPassword = null;
    if (username.contains("@")) {
        // Check that the specified domain matches the server's domain
        int index = username.indexOf("@");
        String domain = username.substring(index + 1);
        if (domain.equals(XMPPServer.getInstance().getServerInfo().getXMPPDomain())) {
            username = username.substring(0, index);
        } else {
            // Unknown domain.
            throw new UserNotFoundException();
        }
    }
    
    // Store the salt and salted password so SCRAM-SHA-1 SASL auth can be used later.
    byte[] saltShaker = new byte[24];
    random.nextBytes(saltShaker);
    String salt = DatatypeConverter.printBase64Binary(saltShaker);

    
    final int iterations = ScramSha1SaslServer.ITERATION_COUNT.getValue();
    byte[] saltedPassword = null, clientKey = null, storedKey = null, serverKey = null;
try {
       saltedPassword = ScramUtils.createSaltedPassword(saltShaker, password, iterations);
           clientKey = ScramUtils.computeHmac(saltedPassword, "Client Key");
           storedKey = MessageDigest.getInstance("SHA-1").digest(clientKey);
           serverKey = ScramUtils.computeHmac(saltedPassword, "Server Key");
   } catch (SaslException | NoSuchAlgorithmException e) {
       Log.warn("Unable to persist values for SCRAM authentication.");
   }
   
    if (!scramOnly && !usePlainPassword) {
        try {
            encryptedPassword = AuthFactory.encryptPassword(password);
            // Set password to null so that it's inserted that way.
            password = null;
        }
        catch (UnsupportedOperationException uoe) {
            // Encryption may fail. In that case, ignore the error and
            // the plain password will be stored.
        }
    }
    if (scramOnly) {
        encryptedPassword = null;
        password = null;
    }

    Connection con = null;
    PreparedStatement pstmt = null;
    try {
        con = DbConnectionManager.getConnection();
        pstmt = con.prepareStatement(UPDATE_PASSWORD);
        if (password == null) {
            pstmt.setNull(1, Types.VARCHAR);
        }
        else {
            pstmt.setString(1, password);
        }
        if (encryptedPassword == null) {
            pstmt.setNull(2, Types.VARCHAR);
        }
        else {
            pstmt.setString(2, encryptedPassword);
        }
        if (storedKey == null) {
            pstmt.setNull(3, Types.VARCHAR);
        }
        else {
            pstmt.setString(3, DatatypeConverter.printBase64Binary(storedKey));
        }
        if (serverKey == null) {
            pstmt.setNull(4, Types.VARCHAR);
        }
        else {
            pstmt.setString(4, DatatypeConverter.printBase64Binary(serverKey));
        }
        pstmt.setString(5, salt);
        pstmt.setInt(6, iterations);
        pstmt.setString(7, username);
        pstmt.executeUpdate();
    }
    catch (SQLException sqle) {
        throw new UserNotFoundException(sqle);
    }
    finally {
        DbConnectionManager.closeConnection(pstmt, con);
    }
}
 

public static String serializeToString(Object object) throws IOException
{
    byte[] bytes = serializeToBytes(object);

    return DatatypeConverter.printBase64Binary(bytes);
}
 

/**
  * Run this application locally in order to generate valid dynamic log level
  * JWT tokens which enable you to change the log level threshold on your
  * CF-Application for a single thread.
  */
 public static void main(String[] args) throws NoSuchAlgorithmException, NoSuchProviderException,
                                        DynamicLogLevelException, InvalidKeySpecException {

     /*
      * PLEASE PROVIDE THIS INFORMATION ***********************************
      */
     // Replace with email address
     String issuer = "[email protected]";
     // Replace with the log level that should be transmitted via the token
     // Valid log level thresholds are:
     // "TRACE", "DEBUG", "INFO", "WARN", "ERROR"
     String level = "TRACE";
     // Set a validity period in days
     long validityPeriodInDays = 2;
     // If available provide Base64 encoded private key here:
     String privateKey = "";
     // If available provide Base64 encoded private key here:
     String publicKey = "";
     // (If no keys are provided, new keys will be generated)
     /*
      * ********************************************************************
      */

     KeyPair keyPair;

     if (StringUtils.isNotBlank(privateKey)) {
         keyPair = new KeyPair(publicKeyConverter(publicKey), privateKeyConverter(privateKey));
     }

     else {
         KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
keyGen.initialize(2048);
         keyPair = keyGen.generateKeyPair();
         // keyPair = KeyPairGenerator.getInstance("RSA").generateKeyPair();
     }
     privateKey = DatatypeConverter.printBase64Binary(keyPair.getPrivate().getEncoded());
     publicKey = DatatypeConverter.printBase64Binary(keyPair.getPublic().getEncoded());
     Date issuedAt = new Date();
     Date expiresAt = new Date(new Date().getTime() + validityPeriodInDays * 86400000);
     String token = TokenCreator.createToken(keyPair, issuer, issuedAt, expiresAt, level);

     System.out.println("You successfully created a dynamic log level token with log level " + level + "!");
     System.out.println();
     System.out.println("Your private key is:");
     System.out.println(privateKey);
     System.out.println("Your public key is:");
     System.out.println(publicKey);
     System.out.println("Your JWT token with log level " + level + " is:");
     System.out.println(token);
     System.out.println();
     System.out.println("Please copy and save token and keys for later usage. The JWT token can now be written");
     System.out.println("to an HTTP header in order to change the corresponding request's log level to " + level);
     System.out.println("For token validation, the public key must be added to the environment of the application.");
     System.out.println("In order to generate a new token with specific keys, the variables privateKey and publicKey");
     System.out.println("can be instantiated with these keys");

 }
 

/**
 * Convert the given String to UTF-8, encode the result with Base64, and return the
 * encoded value as a string. The result string will only contain valid Base64
 * characters.
 * 
 * @param   value   Unicode String value.
 * @return          Base64 encoding of UTF-8 encoded String value.
 */
public static String base64FromString(String value) {
    return DatatypeConverter.printBase64Binary(toBytes(value));
}
 

/**
 * Convert (encode) the given binary value, beginning at the given offset and
 * consisting of the given length, using Base64.
 * 
 * @param  value                    A binary value.
 * @param  offset                   Zero-based index where data begins.
 * @param  length                   Number of bytes to encode.
 * @return                          Base64-encoded value.
 * @throws IllegalArgumentException If the given value is null.
 */
public static String base64FromBinary(byte[] value, int offset, int length) throws IllegalArgumentException {
    return DatatypeConverter.printBase64Binary(Arrays.copyOfRange(value, offset, offset + length));
}